I'm a very empirical person. I believe in empiricism because it works. I believe we can use empirical methods to look around us and learn about reality. So we can compare Muslims, Christians, Jews, Hindus and atheists as a way to learn something about Islam, Christianity, etc. We see that in Muslim countries, there is a tendency to repress women's rights, use violence against those who disagree (including other Muslims), riot over other people's free speech, kill women for exercising their human rights, mutilate girl children, blow up innocent civilians, spread anti-scientific superstition, etc. etc. Furthermore, when they do these things, they tell you in no uncertain terms why they do it--it's because of their religion. They believe it's their religious duty, and that's why they do it. In today's world, religion is often a real, serious problem.
In particular, I am very worried about the spread of Islam and its effect on the world's people. It's bad for Muslims and bad for non-Muslims. It spreads ignorance, barbarism, repression and violence. Wherever Muslims go, we see honor killings, subway bombings, and on and on. This is not speculative, and it's important for us to understand it and figure out how to combat. Islam, a specific, virulent form of Islam, is responsible. Until we understand that, we cannot effectively combat it.